diff --git a/xml/System.Formats.Tar/GnuTarEntry.xml b/xml/System.Formats.Tar/GnuTarEntry.xml
index 1f50ace838c..fced701c8ee 100644
--- a/xml/System.Formats.Tar/GnuTarEntry.xml
+++ b/xml/System.Formats.Tar/GnuTarEntry.xml
@@ -42,9 +42,16 @@ Even though the <xref:System.Formats.Tar.TarEntryFormat.Gnu> format is not POSIX
         <Parameter Name="other" Type="System.Formats.Tar.TarEntry" />
       </Parameters>
       <Docs>
-        <param name="other">To be added.</param>
+        <param name="other">The <see cref="T:System.Formats.Tar.TarEntry" /> instance to convert to the GNU format.</param>
         <summary>Initializes a new <see cref="T:System.Formats.Tar.GnuTarEntry" /> instance by converting the specified <paramref name="other" /> entry into the GNU format.</summary>
         <remarks>To be added.</remarks>
+        <exception cref="T:System.InvalidOperationException">
+          <paramref name="other" /> is a <see cref="T:System.Formats.Tar.PaxGlobalExtendedAttributesTarEntry" /> instance.
+
+-or-
+
+The entry type of <paramref name="other" /> is not supported in the GNU format.</exception>
+        <exception cref="T:System.FormatException">The format of <paramref name="other" /> is invalid.</exception>
       </Docs>
     </Member>
     <Member MemberName=".ctor">
diff --git a/xml/System.Formats.Tar/PaxTarEntry.xml b/xml/System.Formats.Tar/PaxTarEntry.xml
index c2c40297dc8..15548728eea 100644
--- a/xml/System.Formats.Tar/PaxTarEntry.xml
+++ b/xml/System.Formats.Tar/PaxTarEntry.xml
@@ -34,9 +34,16 @@
         <Parameter Name="other" Type="System.Formats.Tar.TarEntry" />
       </Parameters>
       <Docs>
-        <param name="other">To be added.</param>
+        <param name="other">The <see cref="T:System.Formats.Tar.TarEntry" /> instance to convert to the PAX format.</param>
         <summary>Initializes a new <see cref="T:System.Formats.Tar.PaxTarEntry" /> instance by converting the specified <paramref name="other" /> entry into the PAX format.</summary>
         <remarks>To be added.</remarks>
+        <exception cref="T:System.InvalidOperationException">
+          <paramref name="other" /> is a <see cref="T:System.Formats.Tar.PaxGlobalExtendedAttributesTarEntry" /> instance.
+
+-or-
+
+The entry type of <paramref name="other" /> is not supported in the PAX format.</exception>
+        <exception cref="T:System.FormatException">The format of <paramref name="other" /> is invalid.</exception>
       </Docs>
     </Member>
     <Member MemberName=".ctor">
diff --git a/xml/System.Formats.Tar/TarReader.xml b/xml/System.Formats.Tar/TarReader.xml
index 34ca30d8d47..4f68d872e65 100644
--- a/xml/System.Formats.Tar/TarReader.xml
+++ b/xml/System.Formats.Tar/TarReader.xml
@@ -102,8 +102,8 @@ The <xref:System.Formats.Tar.TarEntry.DataStream> property of any entry can be r
       </ReturnValue>
       <Parameters />
       <Docs>
-        <summary>Asynchronously disposes the current <see cref="T:System.Formats.Tar.TarReader" /> instance, and disposes the streams of all the entries that were read from the archive.</summary>
-        <returns>To be added.</returns>
+        <summary>Asynchronously disposes the current <see cref="T:System.Formats.Tar.TarReader" /> instance, and closes the streams of all the entries that were read from the archive if the <c>leaveOpen</c> argument was set to <see langword="false"/> in the constructor.</summary>
+        <returns>A value task that represents the asynchronous dispose operation.</returns>
         <remarks>
           <format type="text/markdown"><![CDATA[
 
diff --git a/xml/System.Formats.Tar/TarWriter.xml b/xml/System.Formats.Tar/TarWriter.xml
index e12a4550fe3..5414e5bdc57 100644
--- a/xml/System.Formats.Tar/TarWriter.xml
+++ b/xml/System.Formats.Tar/TarWriter.xml
@@ -161,7 +161,7 @@ The recommended format is <xref:System.Formats.Tar.TarEntryFormat.Pax> for its f
       <Parameters />
       <Docs>
         <summary>Asynchronously disposes the current <see cref="T:System.Formats.Tar.TarWriter" /> instance, and closes the archive stream if the <c>leaveOpen</c> argument was set to <see langword="false" /> in the constructor.</summary>
-        <returns>To be added.</returns>
+        <returns>A value task that represents the asynchronous dispose operation.</returns>
         <remarks>To be added.</remarks>
       </Docs>
     </Member>
@@ -292,7 +292,7 @@ These are the entry types supported for writing on each format:
         <param name="entry">The tar entry to write.</param>
         <param name="cancellationToken">The token to monitor for cancellation requests. The default value is <see cref="P:System.Threading.CancellationToken.None" />.</param>
         <summary>Asynchronously writes the specified entry into the archive stream.</summary>
-        <returns>To be added.</returns>
+        <returns>A task that represents the asynchronous write operation.</returns>
         <remarks>
           <format type="text/markdown"><![CDATA[
 
diff --git a/xml/System.Formats.Tar/UstarTarEntry.xml b/xml/System.Formats.Tar/UstarTarEntry.xml
index 430e339c832..3cfe3c3e8ff 100644
--- a/xml/System.Formats.Tar/UstarTarEntry.xml
+++ b/xml/System.Formats.Tar/UstarTarEntry.xml
@@ -34,9 +34,16 @@
         <Parameter Name="other" Type="System.Formats.Tar.TarEntry" />
       </Parameters>
       <Docs>
-        <param name="other">To be added.</param>
+        <param name="other">The <see cref="T:System.Formats.Tar.TarEntry" /> instance to convert to the Ustar format.</param>
         <summary>Initializes a new <see cref="T:System.Formats.Tar.UstarTarEntry" /> instance by converting the specified <paramref name="other" /> entry into the Ustar format.</summary>
         <remarks>To be added.</remarks>
+        <exception cref="T:System.InvalidOperationException">
+          <paramref name="other" /> is a <see cref="T:System.Formats.Tar.PaxGlobalExtendedAttributesTarEntry" /> instance.
+
+-or-
+
+The entry type of <paramref name="other" /> is not supported in the Ustar format.</exception>
+        <exception cref="T:System.FormatException">The format of <paramref name="other" /> is invalid.</exception>
       </Docs>
     </Member>
     <Member MemberName=".ctor">
diff --git a/xml/System.Formats.Tar/V7TarEntry.xml b/xml/System.Formats.Tar/V7TarEntry.xml
index 006d388099b..6a17e14e619 100644
--- a/xml/System.Formats.Tar/V7TarEntry.xml
+++ b/xml/System.Formats.Tar/V7TarEntry.xml
@@ -34,9 +34,16 @@
         <Parameter Name="other" Type="System.Formats.Tar.TarEntry" />
       </Parameters>
       <Docs>
-        <param name="other">To be added.</param>
+        <param name="other">The <see cref="T:System.Formats.Tar.TarEntry" /> instance to convert to the V7 format.</param>
         <summary>Initializes a new <see cref="T:System.Formats.Tar.V7TarEntry" /> instance by converting the specified <paramref name="other" /> entry into the V7 format.</summary>
         <remarks>To be added.</remarks>
+        <exception cref="T:System.InvalidOperationException">
+          <paramref name="other" /> is a <see cref="T:System.Formats.Tar.PaxGlobalExtendedAttributesTarEntry" /> instance.
+
+-or-
+
+The entry type of <paramref name="other" /> is not supported in the V7 format.</exception>
+        <exception cref="T:System.FormatException">The format of <paramref name="other" /> is invalid.</exception>
       </Docs>
     </Member>
     <Member MemberName=".ctor">